Solubility of Single Gases Carbon Dioxide and Hydrogen Sulfide in Aqueous Solutions of <i>N</i>-Methyldiethanolamine at Temperatures from 313 to 393 K and Pressures up to 7.6 MPa:  New Experimental Data and Model Extension

Kamps, Álvaro Pérez-Salado; Balaban, A. A.; Jödecke, Michael; Kuranov, George; Smirnova, N. A.; Maurer, Gerd

doi:10.1021/ie000441r

Cited by 130 publications

(61 citation statements)

References 28 publications

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“…CO 2 is believed to react with amino group of the [gua] + [OTf] − . Therefore, for instance, this might lead to remarkably solubility of the amine-functionalized ionic liquid studied in this work, 1 M [gua] + [OTf] − , with other pure conventional ionic liquids [36] as illustrated in Fig. 8.…”

Section: Comparison With Other Ionic Liquidsmentioning

confidence: 92%

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Solubilities of CO2 in aqueous N-methyldiethanolamine and guanidinium trifluoromethanesulfonate ionic liquid systems at elevated pressures

Sairi

Yusoff

Alias

et al. 2011

Fluid Phase Equilibria

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Section: Comparison With Other Ionic Liquidsmentioning

confidence: 92%

“…A few systems of these physical and chemical solvents were designated and compared. MDEA was chosen as the chemical solvent as its lower vapor pressure and less corrosive among others [31][32][33][34][35][36]. Meanwhile, the amine-functionalized ionic liquid, [gua] + [OTf] − was granted to perform as the physical solvent.…”

Section: Introductionmentioning

confidence: 99%

Solubilities of CO2 in aqueous N-methyldiethanolamine and guanidinium trifluoromethanesulfonate ionic liquid systems at elevated pressures

Sairi

Yusoff

Alias

et al. 2011

Fluid Phase Equilibria

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“…The MDEA-H 2 S-H 2 O solubility data of the following authors were reviewed with a mutual and internal consistency tests: Maddox et al (1987), Lemoine at al. (2000), Huang and Ng (1998), Kamps et al (2001), Kuranov et al (1996), MacGregor and Mather (1991), Rogers et al (1998), Sidi-Boumedine et al (2004), Jou et al (1982;, Li and Shen (1993).…”

Section: Binary Ionic Interaction Parameters 351 Ionic Interaction mentioning

confidence: 99%

The solubility of hydrogen sulfide in aqueous N-methyldiethanolamine solutions

Huttenhuis¹,

Agrawal²,

Versteeg³

2008

IJOGCT

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Abstract:In this work the electrolyte equation of state as developed previously for the system MDEA-H 2 O-CO 2 -CH 4 [Huttenhuis et al. (2008), pp.99-112] was further developed for the system MDEA-H 2 O-H 2 S-CH 4 . With this thermodynamic equilibrium model the total solubility of hydrogen sulfide and the speciation in aqueous solutions of N-methyldiethanolamine can be described quantitatively. The model results were compared to experimental H 2 S solubility data in aqueous MDEA in absence and presence of methane respectively. The application of equation of state models for this kind of acid gas -amine systems is a rather new development in the literature. An accurate description is difficult for this kind of complex systems with significant amount of both molecular and ionic species present in the liquid phase. The Schwarzentruber's modification of the Redlich-Kwong-Soave EOS with a Huron-Vidal mixing rule is used as molecular part of the equation of state and ionic interactions terms are added to account for non-idealities caused by these interactions. With the new developed model a comparison with experimental data as presented was made.

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“…Keep the liquid interface of eudiometer (16) and leveling bottle (19), and record the initial scale value. Open the gas sampling valve (17) and let the gas phase into the eudiometer, then close the sampling valve and record the end reading. The difference of the ending and the initial readings is the gas sampling volume.…”

Section: Apparatus and Experimental Methodsmentioning

confidence: 99%

Influence of MEA and piperazine additives on the desulfurization ability of MDEA aqueous for natural gas purification

Shi

Shan

et al. 2016

Int J Ind Chem

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The influence of monoethanolamine (MEA) and piperazine added into methyldiethanolamine (MDEA) aqueous solution on the desulfurization of natural gas was investigated by the method of equilibrium data determination in this paper. Four kinds of equilibrated systems, i.e. H 2 S-NG-MEA-water, H 2 S-NG-MDEA-water, H 2 S-NG-(MEA-MDEA)-water, H 2 S-NG-(MEA-MDEA-PZ)-water at the temperature ranging from 298.15 to 333.15 K were measured in a glass-jacketed gas absorption cell with a double-drive impeller device. The results show that the H 2 S partial pressure increases with the increase of H 2 S loading in liquid phase along an isotherm. The addition of MEA and PZ is beneficial for improving the desulfuration ability of MDEA. The ability of H 2 S absorption for the four mixed alkanolamine systems is MEA [ (MEA-MDEA-PZ) [ (MEA-MDEA) [ MDEA according to the order of size. The four equilibrium data can be well correlated with the Soave-Redlich-Kwong equation of state and electrolyte-NRTL activity coefficient model. The overall mean relative errors of total pressure and H 2 S partial pressure between the calculated and experimental data of the four systems are 3.30 and 3.07 %, respectively. The experimental and calculated results are very useful for desulfuration and purification process of natural gas or other industrial gases.

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Solubility of Single Gases Carbon Dioxide and Hydrogen Sulfide in Aqueous Solutions of N-Methyldiethanolamine at Temperatures from 313 to 393 K and Pressures up to 7.6 MPa: New Experimental Data and Model Extension

Cited by 130 publications

References 28 publications

Solubilities of CO2 in aqueous N-methyldiethanolamine and guanidinium trifluoromethanesulfonate ionic liquid systems at elevated pressures

Solubilities of CO2 in aqueous N-methyldiethanolamine and guanidinium trifluoromethanesulfonate ionic liquid systems at elevated pressures

The solubility of hydrogen sulfide in aqueous N-methyldiethanolamine solutions

Influence of MEA and piperazine additives on the desulfurization ability of MDEA aqueous for natural gas purification

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